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Forum namePerformance/Engine
Topic subjectThe Disadvantages of having no cat?
Topic URLhttps://forums.2gnt.com/dcboard.php?az=show_topic&forum=i5&topic_id=58157
58157, The Disadvantages of having no cat?
Posted by Jproduktion, Aug-30-03 11:04 AM
I recently had my catylic converter taken off and put in a straight pipe, other than not being able to pass emission testings, what other disadvantages would I have? Advantages? thx
58158, RE: The Disadvantages of having no cat?
Posted by Blmet, Aug-30-03 11:08 AM
other main disadvantage is it is illegal and you could, but prolly won't, get fined big time.
58159, RE: The Disadvantages of having no cat?
Posted by ZadensDSM, Aug-30-03 11:14 AM
disadvantages: illegal, wont pass emissions, smells like shit, can make your exhaust sound like shit as well (depending on setup...)


advantages: much lighter than a cat (at least 10 pounds), better flowing exhaust system, can make your exhaust sound better (once again depending on setup), restores some low end torque lost from a larger cat back exhaust system.... oh and telling ricers you have no catalytic converter..... thats the best one, its priceless really

"what! thats illegal!!"
*bitch slap and phrase of choice here*
:thumbsup
58160, RE: The Disadvantages of having no cat?
Posted by Uberingram, Aug-30-03 11:16 AM
CEL
58161, RE: The Disadvantages of having no cat?
Posted by Jason_99ozGS, Aug-30-03 12:08 PM
Loss of back pressure so less low end torque. If you have turbo more free flowing exhaust and the turbo will probably spool a little faster.

58163, RE: The Disadvantages of having no cat?
Posted by jsupetran, Aug-30-03 12:28 PM
poluting the air more

-------jezreel
hrc stage 1, sfmu, ml, prokits, egt, boost gauge, apexi tt, costum dp, dynotune fp gauge. gst muff, turbo spoiler
58164, RE: The Disadvantages of having no cat?
Posted by jsupetran, Aug-30-03 12:28 PM
poluting the air more:nono

-------jezreel
hrc stage 1, sfmu, ml, prokits, egt, boost gauge, apexi tt, costum dp, dynotune fp gauge. gst muff, turbo spoiler
58165, RE: The Disadvantages of having no cat?
Posted by D, Aug-30-03 12:37 PM
mine stinks and smokes while iam sitting at idle is that normal:wary
58166, RE: The Disadvantages of having no cat?
Posted by Blmet, Aug-30-03 01:00 PM
loss of back pressure is not a bad thing, loss of exhaust gas velocity, however is.
58186, RE: The Disadvantages of having no cat?
Posted by ZadensDSM, Aug-30-03 05:59 PM
oh i forgot the dreaded CEL!!
lmao
}(

fyi.... reguardless of what its supposed to do when removed, putting on a test pipe did noticably increase my low end pull, and all i have are bolt ons im not boosted or anything

you're all thinking "wtf is wrong with this kid?"
im fully aware that doing this as well as adding a bigger exhaust system generally kills low end.... i dont understand it either i just know what happened when i put it on...

go figure:wary
58190, RE: The Disadvantages of having no cat?
Posted by eclipticrider, Aug-30-03 07:23 PM
no prob IMO, yes my exhaust smells to high heaven, the sound is awesome (resonator and muffler setup), i don't get a cel cuz i took the damn bulb out, i didn't realy notice any power gains/losses but it does seem sportier... other then that there isn't much bad about it... the worst part is the smell, DO NOT STAND NEAR THAT THING ;)

good luck and have fun

later

WTB: Dodge Omni


http://www.geocities.com/shadyporshe851proof/frame_content/indexframe.html

mods: star stage III clutch + 60mm tb + the normal mods, bass, lights well u get the picture
58199, RE: The Disadvantages of having no cat?
Posted by etx, Aug-31-03 12:08 AM
i have the std hrc shitty dp to a 2.5 pipe back to a straight through muffler. its a little loud, but helps spool the turbo quicker. i like it, and its fun setting off car alarms in the parking structures!